Re: [COMMITTERS] pgsql: Automatic view update rules Bernd Helmle

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От Bernd Helmle
Тема Re: [COMMITTERS] pgsql: Automatic view update rules Bernd Helmle
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Msg-id FA56B1BA483870D3F4FBC0AC@imhotep.credativ.de
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Ответ на Re: [COMMITTERS] pgsql: Automatic view update rules Bernd Helmle  (Guillaume Smet <guillaume.smet@gmail.com>)
Ответы Re: [COMMITTERS] pgsql: Automatic view update rules Bernd Helmle  (Guillaume Smet <guillaume.smet@gmail.com>)
Re: [COMMITTERS] pgsql: Automatic view update rules Bernd Helmle  (Tom Lane <tgl@sss.pgh.pa.us>)
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--On Sonntag, Januar 25, 2009 09:41:14 +0100 Guillaume Smet 
<guillaume.smet@gmail.com> wrote:

>> I think that we probably want the rules to show up automatically during
>> an upgrade from an older version
>
> I'm really not convinced by that. Is it required by the standard? It's
> really far from being compliant with the principle of least surprise.
> Personnally, I don't expect my views to become updatable.
>
> There should be an easy way to make a view become updatable but making
> all of them updatable automagically on upgrade seems weird.

I didn't find such a notion in the standard. A view is automatically 
updatable if it meets the criteria of updatability). If you don't want your 
view writable, you have to GRANT the necessary ACLs.

I originally had the idea of a GUC which controls wether automatic rules 
will be generated or not. But I abonded this idea, since this has some kind 
of "parametrized SQL standard functionality".


--  Thanks
                   Bernd


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